Vac-Sys thermal Shutdown?

[omega53243]

Is the Vac-sys not rated to run continuous?  I bought it a year ago and finally found a project worthy of bringing it out and after about 30 minutes of using it it went into what I figured to be a thermal shutdown cycle.  it would stop working for about 3 minutes and then work again for about a minute before shutting down again.  I touched the pump and it was scorching hot.  Any thoughts?  I was only running one suction clamp. 

 

[tjbnwi]

According the Festool USA website it is a continuous duty pump. I have turned mine on when I go in the shop and not turned it off until the end of the day with no issues.
https://www.festoolusa.com/products...ping-technology/201064---vac-pmp-usa#Overview

From the body of the web page;

"Designed for use with Clamping Modules, this continuous-duty pump is quiet, efficient, and features a front-panel pressure gauge for easy monitoring.

This VAC PMP is the pump for the VAC SYS System."

For the record the Vac-Sys is one of my favorite Festools.

Tom

 

[omega53243]

thanks for the info!  I'll have to give festool a call on Tuesday to do some troubleshooting I guess. 

 

[TylerC]

Yes, it is continuous run and shouldn't go into any sort of shutdown mode. Give our service team a call at 1-888-337-8600. They should be able to get you taken care of.

 

[Scorpion]

Late feedback but figured I'd add it anyway for other's reference later.  I had the same problem and, after a little contemplation, figured it could be a suction issue similar to when the bad is full.  I replaced the bag and filter and it began working normally.  To narrow the possibilities I swapped the old bag (half or more full) back in and it worked normally. 

My theory is when working with finer dust (to finish sand and use to suck up drywall dust) the filter gets plugged up in such a way that the vac has to work really hard to get air.  Hard enough it goes into thermal shutdown to not burn up the motor.

It hasn't happened again since I replaced the filter however I now keep an extra filter with me just in case.

Sent from my iPhone using Tapatalk

 

[Bohdan]

My theory is when working with finer dust (to finish sand and use to suck up drywall dust) the filter gets plugged up in such a way that the vac has to work really hard to get air.  Hard enough it goes into thermal shutdown to not burn up the motor.

When the air flow is restricted by a blocked filter the motor load is reduced so the motor is not working harder. When the air flow is blocked the motor is in fact practically idling.

However in the ct-sys, unlike all of the other CTs, the motor is cooled by the air flow thru the suction hose. If there is a blockage it will overheat from no cooling and for protection shuts down.

That is probably the reason that there is no speed control to reduce the suction as this would reduce the cooling and therefore cause overheating. All reduction of suction has to be done by bypass to maintain the total airflow.

 

[semenza]

[member=41209]omega53243[/member]  Seems to be some confusion in this topic. Are we talking about the Vac -Sys (vacuum clamping system) or the CT-Sys (vacuum)

Seth

 

[omega53243]

I was asking about the vac-sys.  I totally forgot i still need to get with festool to troubleshoot this thing.  Shows how often i use it [eek]

 

[Scorpion]

[member=41209]omega53243[/member]  Seems to be some confusion in this topic. Are we talking about the Vac -Sys (vacuum clamping system) or the CT-Sys (vacuum)

Seth

I apologize.  I frequently make this mistake between the two.

Never had a problem with my Vac-Sys.

Sent from my iPhone using Tapatalk

 

[tjbnwi]

[member=41209]omega53243[/member]  Seems to be some confusion in this topic. Are we talking about the Vac -Sys (vacuum clamping system) or the CT-Sys (vacuum)

Seth

I apologize.  I frequently make this mistake between the two.

Never had a problem with my Vac-Sys.

Sent from my iPhone using Tapatalk

That's because they both suck [big grin]

Tom